Oracle Utilities Work and Asset Management

Transcription

1 MapBuilder Tutorial Oracle Utilities Work and Asset Management MapBuilder Tutorial E October 2012

2 Oracle Utilities Work and Asset Management MapBuilder Tutorial E Copyright Copyright 1986, 2012, Oracle and/or its affiliates. All rights reserved. Oracle and/or its affiliates. All rights reserved. Primary Author: Contributing Author: Contributor: n/a TUGBU Documentation n/a This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected by intellectual property laws. Except as expressly permitted in your license agreement or allowed by law, you may not use, copy, reproduce, translate, broadcast, modify, license, transmit, distribute, exhibit, perform, publish, or display any part, in any form, or by any means. Reverse engineering, disassembly, or decompilation of this software, unless required by law for interoperability, is prohibited. The information contained herein is subject to change without notice and is not warranted to be error-free. If you find any errors, please report them to us in writing. If this software or related documentation is delivered to the U.S. Government or anyone licensing it on behalf of the U.S. Government, the following notice is applicable: U.S. GOVERNMENT RIGHTS Programs, software, databases, and related documentation and technical data delivered to U.S. Government customers are "commercial computer software" or "commercial technical data" pursuant to the applicable Federal Acquisition Regulation and agency-specific supplemental regulations. As such, the use, duplication, disclosure, modification, and adaptation shall be subject to the restrictions and license terms set forth in the applicable Government contract, and, to the extent applicable by the terms of the Government contract, the additional rights set forth in FAR , Commercial Computer Software License (December 2007). Oracle USA, Inc., 500 Oracle Parkway, Redwood City, CA This software is developed for general use in a variety of information management applications. It is not developed or intended for use in any inherently dangerous applications, including applications which may create a risk of personal injury. If you use this software in dangerous applications, then you shall be responsible to take all appropriate fail-safe, backup, redundancy, and other measures to ensure the safe use of this software. Oracle Corporation and its affiliates disclaim any liability for any damages caused by use of this software in dangerous applications. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. This software and documentation may provide access to or information on content, products, and services from third parties. Oracle Corporation and its affiliates are not responsible for and expressly disclaim all warranties of any kind with respect to third-party content, products, and services. Oracle Corporation and its affiliates will not be responsible for any loss, costs, or damages incurred due to your access to or use of third-party content, products, or services.

3 Oracle GIS Viewer MapBuilder Tutorial Oracle Map Builder is a standalone application that lets you create and manage the Oracle Application Server MapViewer mapping metadata (styles, themes, and base maps) in the database. For example, you can use this tool to create a style, theme or base map or modify its definition. Besides handling the metadata, the tool provides interfaces to preview the metadata (for example, to see how a line style will appear on a map or how is the theme rendered based on its styling rules), and display the original spatial information from the spatial tables without creating MapViewer metadata. A set of wizards is also available to create metadata based on database table contents. The following diagram illustrates the main tasks that can be performed in MapBuilder. Existing metadata can be edited and previewed, existing spatial tables can be previewed directly, spatial table contents can be used in wizards to generate MapViewer metadata (advanced styles and themes), and import tools can be used to store metadata (Truetype fonts as style information) and also to generate new spatial tables (shapefiles generate tables with SDO_GEOMETRY type, image files generate tables with SDO_GEORASTER type). This tutorial describes the steps to create MapViewer metadata for some spatial tables containing columns of type SDO_GEOMETRY. The basic steps include the following: Import the sample data Oracle GIS Viewer MapBuilder Tutorial 3

4 The Configuration File Create styles Create themes that use the styles Define a base map that can be used in an Oracle Map application. Running Oracle Map Builder Oracle Map Builder is shipped as a JAR file (mapbuilder.jar). You can run it as a standalone Java application in a Java Development Kit (J2SE SDK) 1.5 or later environment, as follows: % java jar mapbuilder.jar [Options] Options: -help displays information about the available options. -config <config-file> specifies the location of file containing Oracle Map Builder configuration and preference information. If you do not specify this option, Oracle Map Builder looks for a file named oasmapbuilder.xml in your Java home directory. -noconnect disables the automatic opening of previously created database connections. If you specify -noconnect, data sources specified in the oasmapbuilder.xml preferences file or the file specified with the -config option will not be connected; and to use any objects in these data sources, you will need to connect to the data sources. If you do not specify -noconnect, MapBuilder will try to connect to the specified data sources in the oasmapbuilder.xml preferences file or the file specified with the -config option (if the connection is not available a timeout may happen). -cache <cache-size> specifies the size of the in-memory geometry cache. For example: -cache 64M The Configuration File MapBuilder creates a configuration and preferences file named oasmapbuilder.xml in the user's home Java directory (defined by the Java System property user.home). This file can contain information about the product version, Web proxy settings, custom mappings between EPSG and Oracle spatial reference codes, spatial data providers, and database connections. This file is updated whenever any of its parameter values are changed during application use. If the file becomes corrupted for any reason, you can delete it, and Map Builder will create a new one the next time it starts. This is an example of the configuration file: <?xml version="1.0" standalone="yes"?> <oas_mapbuilder_preferences> <prod_version id=" Preview" /> <logging level="finest" /> <srs_mapping> <srs epsg="1111" sdo="82362" /> </srs_mapping> <spatial_provider id="xmlprovider" class="spatialprovider.samples.customspatialproviders ample" jarfile="/lbs/demo/spatialprovider/spatialprovider.ja r" > Oracle GIS Viewer MapBuilder Tutorial 4

5 The User Interface <parameters> <parameter name="datadir" value="" /> </parameters> </spatial_provider> <db_connection name="mb_tutorial" host=" " user="mb_tutorial" passwd="oddb8jely3jmngn5gbawdwtvjvjmyviwwwg0qt/traq=" sid="orcl" port="1521" /> </oas_mapbuilder_preferences> The User Interface This section briefly describes the various elements of the MapBuilder tool s UI (Figure 2). These are the Menus, the toolbar, the database connection drop-down, the metadata and data navigator trees on the left, and editor/preview and message panels on the right. Menus The Menu entries at the top include: File: contains commands to create/edit database connections and metadata. Edit: contains some edit commands such as undo/copy/paste that are reserved for future use. The only operation available is the Delete option to erase metadata. View: contains commands to preview metadata and to refresh the connection contents. Tools: contains submenus and commands to import external data (images such as tif files, or vector data such as Shapefiles), operations to import/export MapViewer metadata (styles, themes, base maps), operation to register external spatial providers to render data in native format, and operations to update some configuration parameters on the preferences file. Oracle GIS Viewer MapBuilder Tutorial 5

6 The User Interface Window: contains submenus and commands to show/hide some user interface components. Help: submenus to access MapBuilder online help and to get the version information. Toolbar The Toolbar entries under the menu options are used for creating, loading or removing database connections; creating or opening metadata information; and to save edited metadata. Connection List The Connection drop-down lets you establish a database connection, use a different connection, create a new connection, or edit an existing connection. Metadata Navigator The Metadata Navigator tree is a hierarchical display of MapViewer metadata objects (styles, themes, base maps, truetype fonts) read from the currently active database connection. To select an object, expand the appropriate tree node or nodes, then click the object. The nodes refer to: Styles: style information stored in the USER_SDO_STYLES view. Themes: theme information stored in the USER_SDO_THEMES view. Base Maps: base map information stored in the USER_SDO_MAPS view. Truetype Fonts: true type fonts, stored in the USER_SDO_STYLES view, which can be used as marker styles. Metadata Icons Above the Metadata Navigator tree there are a set of icons related to this tree: Refresh: refreshes the contents of the navigator tree by loading the current database content for selected connection. Duplicate: opens a dialog to duplicate the metadata definition. Preview: opens a preview window on the right side of the application to display the theme or base map contents. Copy XML: this is currently not supported. Delete: removes the metadata definition from the database. Spatial Data Navigators The Spatial Tables Navigator shows the current spatial tables that are accessible for the selected connection. The nodes are organized by Oracle Spatial object types (ST_ ANNOTATION_TEXT for annotation text tables, SDO_GEOMETRY for geometry tables, SDO_GEORASTER for GeoRaster tables and SDO_TOPO_ GEOMETRY for topology tables). The spatial tables must be registered in corresponding metadata views (e.g. USER_SDO_GEOM_METADATA for geometry tables) in order to be shown on the tree. Oracle GIS Viewer MapBuilder Tutorial 6

7 Load Spatial Data The Spatial Models Navigator tree shows the current network and topology models that are accessible for the selected connection. Editor Pages The right side of the application may contain Editor pages. Users can edit/preview the metadata contents for styles, themes and base maps. Message Panel Below the Editor page there is a Message window that displays log information for actions performed on the current connection. Load Spatial Data A database user must be created and spatial tables must be loaded before creating MapViewer metadata. This section assumes that an Oracle database instance (10gR2 or 11g) has been installed on some server and that the mb_tutorial.dmp file has also been copied to a directory on that system. Create User 1. Start SQLPlus as an administrator: sqlplus system/<password_4_system> 2. Create a new user mb_tutorial: SQL> create user mb_tutorial identified by mb_ tutorial; 3. Grant some privileges to this new user: SQL> grant connect, resource, create view to mb_ tutorial; 4. Exit SQLPlus: SQL> quit Import Geometry Tables Navigate to the directory where file mb_geometry.dmp is and execute: imp mb_tutorial/mb_tutorial file=mb_geometry.dmp full=y You might see console output similar to the following. The important part is that five tables (cities, counties, customers, interstates, and states) should be successfully imported. import done in US7ASCII character set and AL16UTF16 NCHAR character set import server uses WE8DEC character set (possible charset conversion). importing MVDEMO's objects into MB_TUTORIAL. importing MVDEMO's objects into MB_TUTORIAL.. importing table "CITIES" 195 rows imported.. importing table "COUNTIES" 3230 rows imported.. importing table "CUSTOMERS" 205 rows imported Oracle GIS Viewer MapBuilder Tutorial 7

8 Connect to Database with MapBuilder.. importing table "INTERSTATES" 239 rows imported.. importing table "STATES" 56 rows imported Import terminated successfully without warnings. Once the import is complete connect to the database as the user mb_tutorial using SQL*Plus. Check that the spatial metadata and indexes exist. That is, execute the queries SQL> select table_name, column_name from user_sdo_ geom_metadata; and SQL> select table_name, index_name from user_sdo_ index_info; to verify that there are entries for the cities, counties, customers, interstates, and states tables. The file mb_metadata.dmp contains a copy of the user_sdo_maps, user_sdo_themes, and user_sdo_styles metadata in tables named mb_tutorial_maps, mb_tutorial_ themes, and mb_tutorial_styles. If you wish to use these readymade styles, themes, and map definitions instead of creating them by following the instructions detailed in subsequent sections then import this file too. Once you ve imported the file connect as the mb_tutorial user in SQL*Plus. Then insert the contents of these tables into the corresponding views as follows. insert into user_sdo_maps select * from mb_tutorial_ maps; insert into user_sdo_themes select * from mb_tutorial_ themes; insert into user_sdo_styles select * from mb_tutorial_ styles; If however you prefer to create all the required styles, themes, and maps with MapBuilder then follow the instructions provided in the remainder of this tutorial. Connect to Database with MapBuilder Navigate to the directory where MapBuilder application is and run the following command: java -jar -Xmx512M mapbuilder.jar -noconnect To add a new database connection in MapBuider, use one of the following options: Option 1: Menu File and then menu item New Connection... Option 2: Click the Connection drop-down list and select item Load/Add/Remove... A dialog with connections from the preferences file is shown, and click on Add button. Oracle GIS Viewer MapBuilder Tutorial 8

9 Connect to Database with MapBuilder Enter the required details in the Add Connection dialog and click Test Connection followed by OK if the connection test is successful. The connection details will depend on your database installation. MapBuilder will load the relevant metadata and populate the navigator trees. At this point the Metadata Navigator tree is empty, as there is no MapViewer metadata for this connection. The Tables Navigator tree will have a list of geometry tables available. Oracle GIS Viewer MapBuilder Tutorial 9

10 Connect to Database with MapBuilder Quick Preview of Spatial Data MapBuilder allows users to preview the original spatial data without creating any styles, themes, or map definitions. To quickly preview the STATES table: Step 1: Click on STATES node of the Spatial Tables Navigator. Step 2: Right click to bring up a submenu and select menu item Preview. The quick preview panel is displayed on the right side of the application. It contains three areas: the top area has text fields to define the map data location, some buttons to draw the map and interact with it (pan, zoom in, zoom out, zoom by rectangle, and identify operations), and an Options menu; the middle area is the mapdisplay; and the bottom contains some information about the selected table. To render the feature geometries with labels, check box Label Column and choose a label column on the list (for example STATE column). Press the green arrow to display the full map. Play with the zoom buttons to enlarge or reduce the map scale. As you zoom in you may notice more labels on the map. Oracle GIS Viewer MapBuilder Tutorial 10

11 Create MapViewer Metadata This section describes how to create styles, themes and base maps to render spatial data for a map that will display STATES, COUNTIES, INTERSTATES, CITIES, and CUSTOMERS. First define the styles (colors, lines, and markers), then the themes, and finally the base map. Styles Styles are used to render and to label spatial features such as interstate highways. Color Style Color styles can be used to render area, linear and point features. Create a style for rendering the STATES table as described below. Option 1: Click the Styles node on the Metadata Navigator tree, right click to bring up a menu, and select Create Color Style. Option 2: Expand the Styles node on the Metadata Navigator tree and click on Colors node, then right click to bring up a menu and select Create Color Style. Oracle GIS Viewer MapBuilder Tutorial 11

12 This opens up a Editor panel for a Color Style on the right. Enter basic parameters such as the name and description of the style, and define its fill and stroke attributes. The fill attribute defines how the geometry will be filled, while the stroke defines how the outline (border) will be rendered. Now let s create a style for the STATES table (note that not all steps are required and they need not be done in the order shown below). Step 1: Select the Fill option (check the box if it isn t). Define the fill color by clicking on the color icon to bring up a dialog with colors, or entering the hexadecimal value (for example #F2EFE9) and then press <Enter>. Step 2: Select the Stroke option and uncheck the box. Step 3: Click on Preview button to see the current color style representation. Step 4: Click on XML tab to see the current XML definition for this color style. Step 5: Enter C.STATES in the name text field, and an optional description text. Step 6: Click the Save icon on the application tool bar to store the color style definition on Oracle GIS Viewer MapBuilder Tutorial 12

13 USER_SDO_STYLES database view. After saving the style, the Metadata Navigator tree is updated with this style name under Colors node. Line Style Line styles can be used to render linear features. The can also be used to render the boundary of area features. Create lines styles for displaying counties and interstate highways. A line style can be created using either of the following options: Option 1: Click the Styles node on the Metadata Navigator tree, right click to bring up a menu, and then select Create Line Style. Option 2: Expand the Styles node on the Metadata Navigator tree and click on Lines node, then right click to bring up a menu and select Create Line Style. Oracle GIS Viewer MapBuilder Tutorial 13

14 An editor page for a Line Style is opened on the right. Here we ll define basic parameters such as name and description, and attribute values for the overall base, center, and wing lines. First we define the base line by specifying the attributes of the overall line. The center line attributes define the line that will be drawn over and in the center of the base line. The wing line parameters define the borderlines of the style. To create a Line style to be used with INTERSTATES table, perform the following actions to create a line style with an overall line and a wing line as follows: Step 1: Select the Overall Line option and set the Width to 3, End Cap type to Butt, Joint to Round, and define the color by clicking on the color icon for a dialog box to select a color, or by entering the hexadecimal value (for example, #DB883F) and pressing <Enter>. Leave the Opacity at 100% and make sure the Cased check box is checked. Step 2: Select the Center Line option ensuring the check box is checked. Set the Width to 1, leave the Dash Pattern text field blank, and define the color as hexadecimal #FCD462. Step 3: Click on Preview button to see the current line style representation. Step 4: Click on XML tab to see the current XML definition for this line style. Step 5: Enter L.INTERSTATES (not L.S04_ROAD_INTERSTATE) in the name text field, and an optional description text. Step 6: Click the Save icon on the application tool bar to store the line style definition in the USER_SDO_STYLES database view. Oracle GIS Viewer MapBuilder Tutorial 14

15 After saving the style, the Metadata Navigator tree is updated with this style name under Lines node. Next we define the line style to display the county borders. The steps are similar to the ones above. Except in this instance the Overall Line width is 0 (i.e. there is no overall line) and the Center Line has a width of 1, a dash pattern (6.0, 2.0 indicating 6 pixel long line followed by 2 blank pixels) and color (#BBBBBB) as shown in the figures below. The first figure shows the Center Line attributes while the second shows the Overall Line attributes. Name the style L.COUNTIES (not L.S03_ BORDER_STATE) and click Save. Oracle GIS Viewer MapBuilder Tutorial 15

16 Marker Style Marker styles can be used to render point features, and to label linear and point features. The base marker can be associated with an image, with a vector representation, or with a true type font. A marker style can be created using either of the following options: Option 1: Click the Styles node on the Metadata Navigator tree, right click to bring up a menu, and then select Create Marker Style. Option 2: Expand the Styles node on the Metadata Navigator tree and click on Lines node, then right click to bring up a menu and select Create Marker Style. Oracle GIS Viewer MapBuilder Tutorial 16

17 An editor page for a Marker Style is opened on the right side. The style options include the marker type (image, vector or true type font), the marker text that is applied inside the marker when labeling linear or point features, and the marker size. To create a Marker style to be used with CITIES, INTERSTATES, and CUSTOMERS tables, perform the following actions: Step 1: Select the Marker Type option and click on the Image radio button. Step 2: Click button Load Image. Navigate to the directory where file cities.png is and select it. Step 3: Click on Preview button to see the current marker style representation. Step 4: Click on XML tab to see the current XML definition for this marker style. Oracle GIS Viewer MapBuilder Tutorial 17

18 Step 5: Enter M.CITIES (not M.ALL_CITY_L1) in the name text field, and an optional description text. Step 6: Click the Save icon on the application tool bar to store the marker style definition in the USER_SDO_STYLES database view. After saving the style, the Metadata Navigator tree is updated with this style name under Markers node. Perform the same steps for the images files cities_8x8.png (name the style M.CITIES_8X8), medium_cities.png (name the style M.MEDIUM_CITIES), small_ cities.png (M.SMALL_CITIES), customers.png (M.CUSTOMERS), and highway_ shield.png (M.HIGHWAY_SHIELD) Text Style Text styles are used to label features. We will create two text styles, one for displaying city names and the other for state abbreviations. Option 1: Click the Styles node on the Metadata Navigator tree, right click to bring up a menu, and then select Create Text Style. Option 2: Expand the Styles node on the Metadata Navigator tree and click on Texts node, then right click to bring up a menu and select Create Text Style. Oracle GIS Viewer MapBuilder Tutorial 18

19 An editor page for a text Style is opened on the right. Style options for a text style include basic information for text such as font and size to be used, and other attributes related with multi lines, path labeling, and orientation points. To create text styles for labeling STATES and CITIES, perform the following actions: Step 1: Select the Text style option. Step 2: Change the text size to 11, set the color to #666666, and keep all other defaults. Step 3: Click on the Halo option and set Width to 2 and Color to #ffffff (white). Step 4: Click on Preview button to see the current text style representation. Step 5: Enter T.STATE_ABBRV in the name text field, and an optional description text. Step 6: Click the Save icon on the application tool bar to store the text style definition in USER_SDO_STYLES database view. Oracle GIS Viewer MapBuilder Tutorial 19

20 Repeat above steps to create a text style (T.CITIES) for CITIES table, setting the Font to Dialog, size as 11, and Color to # (black). Select the Halo option and set width to 2 and color to #ffffff (white). Click on Save. Oracle GIS Viewer MapBuilder Tutorial 20

21 Repeat the above to create text label styles for medium (T.MEDIUM_CITIES) and small (T.SMALL_CITIES) cities. The Halo is the same in both cases (width=2 color=#ffffff). For T.MEDIUM_CITIES set the font (in the Text options) to Dialog 10 and Color to #3F3F3F (dark grey). For T.SMALL_CITIES set the font to Dialog 9 and Color to # Advanced Style Advanced styles are constructed from simple styles and a condition that determines which simple style is used to render the current geospatial feature. They are generally used to render features, but may also be used to label them. The base advanced style is the bucket style. A bucket style is a one-to-one mapping between a set of primitive styles and a set of buckets. Each bucket contains one or more attribute values for features to be plotted. For each feature, one of its attributes is used to determine which bucket it falls into and then the style assigned to that bucket is applied to the feature. We will create an Advanced Style to render cities based on their population. An advanced style can be created with the following options: Option 1: Click the Styles node on the Metadata Navigator tree, right click to bring up a menu and select Create Advanced Style. Option 2: Expand the Styles node on the Metadata Navigator tree and click on Advanced node, then right click to bring up a menu and select Create Advanced Style. Option 3: Advanced styles are based on attribute values, and users can create an advanced styles using database table content. Expand the Spatial Tables tree; select the spatial table node, right click to bring up a menu and select Create Advanced Style. A dialog will display the available advanced styles. A style creation wizard is invoked when you select one of the available style choices. Oracle GIS Viewer MapBuilder Tutorial 21

22 Using Option 3, let s create an advanced style to represent different population ranges for the CITIES table. The wizard to do that, which will help us define a theme based on the advanced style being created. Step 1: Select the CITIES node in the Spatial Tables/Geometry Themes tree under MB_TUTORIAL (or MVDEMO or whatever you named the user schema where you imported the tutorial data). Right click and select Create Advanced Style. Step 2: A dialog is shown with the advanced style types. Keep the default selection type Bucket but choose Variable Ranged Bucket as the Bucket type. Click OK to start the wizard. Oracle GIS Viewer MapBuilder Tutorial 22

23 Step 3: Press Next, on the wizard s introductory page, to continue. Step 4: This page is already populated with some information from CITIES table. Enter V.CITIES for the style name and set the number of buckets to 3. The POP90 column (attribute) is already selected. We will use that value as the bucket selector. Step 5: The bucket ranges are already defined with some default values obtained from CITIES table. Edit these values and set the Label, Low, High, Feature Style, and Label Style values to the following. Double-click on each row s entry to edit the values. The first bucket s values should be {< 200K, 0, , M.SMALL_CITIES, T.SMALL_ CITIES} assuming you used those names for the corresponding marker and text styles. The second bucket s values should be {200K 1M, , , M.MEDIUM_CITIES, T.MEDIUM_CITIES}. Enter the values {> 1M, , Infinity, M.CITIES_8X8, T.CITIES} for the third bucket. Oracle GIS Viewer MapBuilder Tutorial 23

24 Step 6: Next create the predefined theme based on this advanced style. Check the Create Predefined Theme option, and enter the theme name THEME_CITIES_ POP90. Click Next. Step 7: This last page contains the summary information for the advanced style and for the theme that will be stored on USER_SDO_STYLES and USER_SDO_ THEMES database view. Press Finish to end the wizard. The metadata trees will be updated, and the theme editor will be opened. Press the Preview tab and the green arrow to render the theme. Note that at this point you just have the markers representing the cities. Later we are going to add labeling information to this theme. Geometry Themes Geometry themes are based on spatial tables with column of type SDO_ GEOMETRY. Now that we ve created all the styles we d like to use in rendering the data on a map we will create the themes. They are created using one of the following options: Oracle GIS Viewer MapBuilder Tutorial 24

25 Option 1: Click the Themes node on the Metadata Navigator tree, right click and select Create Geometry Theme. Option 2: If the Tables and Models data navigators are not visible click on button Show Data located on the bottom left part of the application to display them. Select Tables tab to display the Spatial Tables Navigator tree. Expand the Geometry Tables node up to get the table names for node MB_TUTORIAL. Select the table node, right click and select Create Geometry Theme. The geometry theme definition wizard will start. Using Option 2, let s create some geometry themes based on the STATES, INTERSTATES, CITIES, COUNTIES, and CUSTOMERS tables. STATES Theme Step 1: Click the STATES node and right click to select Create Geometry Theme. Oracle GIS Viewer MapBuilder Tutorial 25

26 Step 2: A wizard will start with an introductory page. Press Next to continue. Step 3: This page is already populated with information obtained from the STATES table. Define the theme name as THEME_STATES and keep the other field values. Press Next to continue. Step 4: Here you define the feature rendering style. Keep the style type as Color, and type C.STATES in the render style field or press the Select button to choose the style. This brings up the Style picker Dialog as shown below. Oracle GIS Viewer MapBuilder Tutorial 26

27 Step 5: Now define the label parameters. Check the Label Style box to enable the fields. Define T.STATES as the text style and select STATE_ABRV as the label column. Click Next. Step 6: Next we define query conditions to be applied. Leave it blank, which means that all features within the current map extent will be selected. Press Next to continue. Oracle GIS Viewer MapBuilder Tutorial 27

28 Step 7: This last page contains the summary information for the theme that will be stored in USER_SDO_THEMES database view. Press Finish to end the wizard. Step 8: After ending the wizard the theme editor page is opened on the right side of the application. Select the Preview tab and click the green arrow to display all data for this theme. COUNTIES Theme Select the COUNTIES node and repeat the previous steps entering the following information in the wizard pages (keep the other parameters as they are): Theme Name: THEME_COUNTIES Style Type: Color Render Style: L.COUNTIES Oracle GIS Viewer MapBuilder Tutorial 28

29 With the theme editor opened, select the Preview tab and click the green arrow to display all data for this theme. Depending on the display area, you may get an image with missing counties. This is because these counties are very small for the current display resolution, and the anti alias parameter is currently set to true (see Options menu on the top right corner of this preview panel). Using the zoom area button select the continental US area. The preview image is something like: HIGHWAYS Theme Select the INTERSTATES node and repeat the above steps entering the following information on the wizard pages (keep the other parameters as they are): Theme Name: THEME_HIGHWAYS Style Type: Line Render Style: L.INTERSTATES Label Style Type: Marker Label Style Name: M.HIGHWAY_SHIELD Label Attribute: ROUTEN Label Function: (3-length(routen)) The label function determines when a feature is labeled. So only those interstates with 2-digit numbers will be labeled since the label function returns 1 (true) for those highways. With the theme editor opened, select the Preview tab and click the green arrow to display all data for this theme. Oracle GIS Viewer MapBuilder Tutorial 29

30 HIGHWAYS_LINE Theme We ll create another highways theme that just displays the interstates without any interstate highway shield markers. Select the INTERSTATES node and repeat the above steps entering the following information on the wizard pages (keep the other parameters as they are): Theme Name: THEME_HIGHWAYS_LINE Style Type: Line Render Style: L.INTERSTATES Label Style Type: Marker Label Style Name: M.HIGHWAY_SHIELD Click on Save to store the theme definition in USER_SDO_THEMES. CITIES Theme We defined a CITIES theme when defining the V.CITIES advanced style. To add the label style click on the Styling Rules option in the theme s editor pane. Then select the first row and click on the Edit icon (the pencil). Next select V.CITIES as the Label Style. However that treats all cities as equal when they re considered for labeling. We wish to label large cities whenever possible and medium or small cities using a different text and marker style. So we ll create two cities themes, one named theme_ cities (for small and medium sized cities) and one name theme_bigcities. The large cities theme will be added to the base map before the small and medium cities theme. Step 1: Select the CITIES node in metadata tree and right click. Name it THEME_ CITIES. Step 2: Select Style Type as Marker and Render Style as M.SMALL_CITIES. Step 3: Check the Label Style check box and select the Text Style T.SMALL_CITIES. Leave the attribute as City. This means the values contained in this column (the city name in this case) will be used to label the feature. The label function can be any valid SQL expression and is used to filter labels. The label will be shown if the label function results in value greater than 0 (just define it as 1, and the labels will be rendered). Oracle GIS Viewer MapBuilder Tutorial 30

31 Step 4: In the Query Condition dialog box enter the filter condition (POP90 < ). Click Next. Review the XML definition of the theme so far and click Finish. Step 5: In the editor pane select the Styling Rules option. Then click on the Add icon (the green plus sign). Then select the newly added row and click the Edit (pencil) icon. Select the marker M.MEDIUM_CITIES as the Render Style. Enter (POP90 BETWEEN AND ) as the Query Condition. Select CITY as the Label Column, T.MEDIUM_CITIES as the Label Style, and set the Label Function to 1. Click OK. Step 6: Select the Preview tab and press the green arrow to render the cities with labels. Step 7: Press the Save button on the Toolbar to save the theme definition. BIGCITIES Theme Select CITIES node and repeat above steps entering the following information (keep the other parameters as they are): Theme Name: THEME_BIG_CITIES Style Type: Marker Render Style: M.CITIES_8X8 Label Style Type: Text Label Style Name: T.CITIES Label Attribute: CITY Query condition: pop90 > With the theme editor opened, select the Preview tab and click the green arrow to display all data for this theme. Oracle GIS Viewer MapBuilder Tutorial 31

32 CUSTOMERS Theme Select CUSTOMERS and repeat above steps entering the following information (keep the other parameters as they are): Theme Name: THEME_CUSTOMERS Style Type: Marker Render Style: M.CUSTOMERS Label Style Type: Text Label Style Name: T.SMALL_CITIES Label Attribute: NAME In Oracle Maps applications you can get information about features of interest (FOIs) on passing the mouse over the feature, or clicking on the feature. This is known as the Hidden Info columns and defined in MapBuilder as follows. The THEME_CUSTOMERS theme editor must be opened. Step 1: Select the Advanced Option, and there will be a panel with Info Columns table at the bottom. Click the edit button to define info columns. Oracle GIS Viewer MapBuilder Tutorial 32

33 Step 2: Define the info columns using the Add button. Step 3: Select the XML tab to see the current theme definition, and press the Save button on Toolbar to save the current definition. Oracle GIS Viewer MapBuilder Tutorial 33

34 Base Map Base map definitions, stored in USER_SDO_MAPS, contain one or more themes. A set of parameters can be assigned to each theme that is part of a base map. In this tutorial we use scale ranges. Scale ranges for themes are used to define which theme are displayed at which zoom levels during map visualization. If scale ranges are not defined the theme is always rendered independent of the map zoom level. Base maps are created in MapBuilder using a wizard. The base map creation wizard is invoked in either of the following ways: Option 1: Menu File, then menu option New Metadata. Select radio button Base Map and click OK. Option 2: Click the Base Maps node in the Metadata Navigator, right click and then select Create Base Map. Now let s define a base map that uses previously created themes. Step 1: Using option 2 above, starts the base map wizard. Press OK to continue. Step 2: Enter the base map name and an optional description. Press OK to continue. Step 3: Add themes to the base map by selecting the theme on the table and pressing the Add icon. The scale ranges can be defined using the MapViewer native mode (Coordinate reference system units per screen inch), or the (preferred) ratio mode that is normally used in maps. Ratio scales are generally presented as 1:XXXX, which means 1 unit on the map represents XXXX units on the ground. When defining a scale value for ratio mode, do not enter for example the pattern 1: but just the value Add the themes and set the scale values based on figure below. Then press OK to continue. Oracle GIS Viewer MapBuilder Tutorial 34

35 Step 4: A summary page is shown with the base map definition. Press Finish to store the base map definition and an editor page will be shown. Select the Preview tab and click on the green arrow to display the map. Note at the bottom of MapBuilder application the scale values for current visualization. The resulting map should contain just the themes that are in the scale range. Play with the zoom in and zoom out options to see the map results. With the editor you can also modify the initial scale ranges defined. <?xml version="1.0" standalone="yes"?> <map_definition> <theme name="theme_states" min_scale="1.5e8" max_scale="0.0" scale_mode="ratio"/> <theme name="theme_counties" min_scale=" " max_ scale="0.0" scale_mode="ratio"/> <theme name="theme_highways_line" min_scale="1.0e8" max_ scale="4.5e7" scale_mode="ratio"/> <theme name="theme_highways" min_scale="4.5e7" max_scale="0.0" scale_mode="ratio"/> <theme name="theme_bigcities" min_scale="4.5e7" max_scale="0.0" scale_mode="ratio"/> <theme name="theme_cities" min_scale=" " max_ scale="0.0" scale_mode="ratio"/> </map_definition> Oracle GIS Viewer MapBuilder Tutorial 35

36 This concludes the tutorial. With the MapViewer metadata stored, you can now develop web applications using Oracle Maps or MapViewer Java API. Refer to the specific documentation, or forthcoming tutorials, for more details. Oracle GIS Viewer MapBuilder Tutorial 36